Revisions browse + restore

[tayebmokni]

Summary

Build the revisions browser and restore flow. The UI is a tree-diff view showing per-block additions/removals/edits (not a unified HTML diff). Default filter kind IN ('manual','publish'); toggle reveals autosaves. Restore creates a new kind='manual' revision with comment "Restored from revision X" (per doc 01 §4.4) — never rewrites history.

Design reference

• docs/04-block-editor.md §9.4 (Revisions — editor surface)

Acceptance criteria

• Revisions browser route in the editor (modal or full panel)
• Reconstructs delta-stored revisions by walking back to the nearest snapshot
• Tree-diff renderer: shows per-block add / remove / attribute change / inner-block change
• Default hides autosave rows; toggle reveals
• Restore creates a new kind='manual' revision; does not rewrite history
• Confirmation modal before restore
• Keyboard a11y throughout

Dependencies

#117

Complexity

M

[tayebmokni]

Closing — shipped in the merged Wave PR. Auto-close only fires for first ref.